As a California resident who regularly opts out of data collection (and also, incidentally, works in tech), as a consumer I don't really care what you or your clients think. I just want you to comply with the law.
A remarkably high percentage of our legal framework is designed to protect a very small number of people from being exploited by another small number of people. Yes, the costs of implementing these laws are high, but the societal benefits are, in aggregate, huge.
My personal information is my own, just like my house, my car, my investments, my copyrights, and bank accounts. And I expect there to be laws that protect it, allow me to control it, and restrict how others can use it just as there are for my other assets.
If applying these laws is inconvenient, then that speaks volumes as to how overdue these laws were.